An N-acylserotonin resulting from the formal condensation of the primary amino group of serotonin with the carboxy group of acetic acid. ChEBI: N-acetylserotonin is an N-acylserotonin resulting from the formal condensation of the primary amino group of serotonin with the carboxy group of acetic acid. It has a role as a human metabolite, a mouse metabolite, an antioxidant and a tropomyosin-related kinase B receptor agonist. It is a member of acetamides, a member of phenols and a N-acylserotonin.